The effect of the treatment with NAD and ANA based product on the productivity and quality of large fruit

Abstract

he study subject of the experience was Idared apple variety grafted on M9,trees were trained as slender spindlesfordistance 3.5 x 0.8m. To studyinfluenceof growth regulator Auxiger (NAD –1.5 g/L+ ANA –0.6 g/L) on average weight of fruits, fruit production and fruit size were experimented the following variants of treatment: 1.Control –without treatment; 2. Auxiger, 0.9L/ha; 3. Auxiger, 1.8L/ha. Growth regulator wassprayed one time, during the period of intensivefruit growing, when the fruits diameter was 22-25 mm (09.06.16). The research was conducted during the period of 2016year. In the present research work, we demonstrated that Auxiger increase average weight of fruits, fruit production and fruit size and may be included in the technology systemfor cultivation of apple, applied onesprayat 1.8 L/hawhen the fruits diameter was 22-25 mm.